-
201
Copper complexes of dinucleating octa-azamacrocyclic ligands
Published 1982“…Three types of dinacleating tetraimine macrocycles have been prepared from 4,7-diaza-2,3;8,9-dibenzodecane-l,10-dione by condensation with the appropriate polyamine; I, large-ring octa-aza macrocycles e.g. the 28—membered ring compound 5,6,7,8,15,16,23,24,25,26,33,34— dodecahydrotetrabenzo(e,m,s,a’) (1,4,11,15,18,22,25) octaaza- cyclooctacosine and related 30- and 36- membered ring compounds; II, the "fused" bis(tetra-azamacrocycle) 5,6,7,8,22,23,24,25-octahydrotetrabenzo (f,f’1,1’) benzo (1,2-b:4,5-b’)- bis(1,4,8,)tetraazacyclotetradecine; III, the "Linked" bis(tetra-azamacrocycle) 5,6,7,8,24,25,26,27-octahydrotetrabenzo (f,f’,1,1)diphenyl(3,4-b:3’,4’-b’)bis(l,4,8,11)tetraazacyclotetradecine. …”
Get full text
Thesis -
202
Sulfur monoxide transfer from peri-substituted trisulfide-2-oxides to dienes: substituent effects, mechanistic studies and application in thiophene synthesis
Published 2011“…The 1,2,3-trithiane-2-oxide ring adopts a sofa conformation in the solid state, with a pseudoaxial oxygen and evidence of ring strain (peri-interaction). …”
Article -
203
Compact tri-band Wilkinson power divider based on metamaterial structure for Bluetooth, WiMAX, and WLAN applications
Published 2019“…It comprises a П-shaped transmission-line coupled to a rectangular split ring resonator metamaterial structure. The μ-negative feature of the rectangular split ring resonator metamaterial structure is investigated by retrieving its constitutive parameters from the S-parameter response. …”
Get full text
Article -
204
Synthesis and chemistry of 1,4-oxathianes and 1,4-oxathian-3-ones
Published 1997“…The first involved an examination influencing the regioselectivity of the epoxide and consequent ring-opening to yield the corresponding hydroxy sulfide. …”
Get full text
Thesis -
205
Redevelopment of Northern End of York Racecourse
Published 2015“…New Equine and Racegoer facilities at York Racecourse including a new pre-parade ring and saddling boxes; new weigh-in building; new bars, restaurant and champagne lawn.…”
Get full text
Artefact -
206
Birmingham St Patrick's day parade 2001 (poster)
Published 2001“…Anne's via Digbeth and The Bull Ring.…”
Get full text
Ephemera -
207
Preparative and N.M.R. studies of polyphosphorus ligands and their complexes
Published 1992“…When all three phosphorus atoms are coordinated to the same metal atom this leads to considerable ring strain, but nonetheless such complexes are stable, but show interesting variations in their n.m.r. properties. …”
Get full text
Thesis -
208
Tunable performance of indium tin oxide-zinc oxide as Q-switcher
Published 2023“…The mechanical exfoliation technique is applied to serve the ITO-ZnO as SA and inserted in a single-ring cavity design. The QPEDFL in a single ring cavity gives the repetition rate, pulse width, average output power, pulse energy, and SNR of 38.49 kHz, 5.50 µs, 0.47 mW, 12.72 nJ, and 64.20 dB, respectively. …”
Get full text
Article -
209
Tunable performance of indium tin oxide-zinc oxide as Q-switcher
Published 2023“…The mechanical exfoliation technique is applied to serve the ITO-ZnO as SA and inserted in a single-ring cavity design. The QPEDFL in a single ring cavity gives the repetition rate, pulse width, average output power, pulse energy, and SNR of 38.49 kHz, 5.50 µs, 0.47 mW, 12.72 nJ, and 64.20 dB, respectively. …”
Get full text
Article -
210
Development and evaluation of linerboard made from soda-anthraquinone treated coconut coir fiber for protective packaging
Published 2018“…By using this revolution, the burst index of 4.57 kPa.m2/g and ring crush index of 1.76 Nm2/g was obtained. The optimum beating revolution was further used in the blending process. …”
Get full text
Thesis -
211
2 - Epi-3,6-dithio-2,5-diketopiperazines (ETPs): an overview of synthetic approaches to the ETP core
Published 2021“…Herein, we describe different examples and synthetic approaches attempted to obtain the ETP core structure, characterised by a diketopiperazine ring bridged by two (or more) sulfur atoms at the three and six positions.…”
Book Section -
212
Indium tin oxide-based Q-switched fiber laser generation and sensing application
Published 2021“…Thus, the single ring configuration was selected and improved to enable Q-switched wavelength tunability by employing a tunable bandpass filter (TBF). …”
Get full text
Get full text
Get full text
Thesis -
213
Synthesis and characterisation of novel α-functionalised phosphoryl derivatives
Published 2001“…A novel N-functionalised macrocycle ring that includes four pendant methylenephosphonates with embedded pyridine has been successfully prepared. …”
Get full text
Thesis -
214
-
215
Generation of tunable q-switched erbium-doped fiber laser based on graphite flakes saturable absorber
Published 2020“…The aim of this study is to construct a single ring erbium-doped fiber (EDF) laser based on graphite flakes SA to produce short pulse laser. …”
Get full text
Get full text
Get full text
Thesis -
216
Planar antennas with enhanced bandwidth and radiation characteristics
Published 2017“…In this chapter, novel wideband and ultra-wideband (UWB) antennas that are based on loading the background plane of a monopole radiator with concentric split-ring resonators are presented. It is shown that this modification improves the fractional bandwidth of the antenna from 41 to 87%; in particular, the operational bandwidth of the proposed antennas is double that of a conventional monopole antenna of the same size.…”
Get full text
Book Section -
217
Generation of pulsed dual wavelength erbium doped fiber laser
Published 2019“…Therefore, the aim of this thesis is to generate a single and dual wavelength fiber laser and pulsed fiber laser by using fiber Bragg grating (FBG) in single ring and Figure-8 configurations at 1550 nm and 1560 nm. …”
Get full text
Get full text
Get full text
Thesis -
218
Crystal Structure of gamma-Oxapentamidine complexed with d(CGCGAATTCGCG)2. the effects of drug structural change on DNA minor-groove recognition
Published 1994“…The amidinium groups of the ligand do not hydrogen bond to bases, but are in close contact with 04' sugar ring atoms. This in part explains the reduced DNA binding affinity of this ligand compared to pentamidine.…”
Article -
219
On the puncture strength of rubber
Published 1987“…It has been observed that a ring crack forms on the rubber surface before puncture occurs. …”
Get full text
Thesis -
220
Mutual coupling reduction in dielectric resonator antennas using metasurface shield for 60 GHz MIMO systems
Published 2016“…The metasurface comprises an array of unique split-ring resonator (SRR) cells that are integrated along the E-plane. …”
Get full text
Get full text
Article